#include <stdio.h>
#include <string.h>

int main () {
    char str1[15];
    char str2[15];
    int ret;

    printf("'a'-'A'=%d\n", 'a'-'A');
    int size_t  = 6 >> 2;
    printf("6 >> 2 = %d\n", size_t);
    strcpy(str1, "abcdef");
    strcpy(str2, "abcdeFg");

    ret = strncmp(str1, str2, 6);

    if(ret < 0) {
        printf("str1 is less than str2");
    } else if(ret > 0) {
        printf("str2 is less than str1");
    } else {
        printf("str1 is equal to str2");
    }
    printf("\n");
    return(0);
}